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The First Pulse of the Extremely Bright GRB 130427A: A Test Lab for Synchrotron Shocks.

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Title: The First Pulse of the Extremely Bright GRB 130427A: A Test Lab for Synchrotron Shocks.
Authors: Preece, R., Burgess, J. Michael, von Kienlin, A., Bhat, P. N., Briggs, M. S., Byrne, D., Chaplin, V., Cleveland, W., Collazzi, A. C., Connaughton, V., Diekmann, A., Fitzpatrick, G., Foley, S., Gibby, M., Giles, M., Goldstein, A., Greiner, J., Gruber, D., Jenke, P., Kippen, R. M.
Source: Science (pre-March 2025). 1/3/2014, Vol. 343 Issue 6166, p51-54. 4p.
Subjects: Gamma ray bursts, Supergiant stars, Synchrotron radiation, Stellar luminosity function, Gamma ray astronomy, Stellar spectra
Abstract: Gammaray burst (GRB) 130427A is one of the most energetic GRBs ever observed. The initial pulse up to 2.5 seconds is possibly the brightest well-isolated pulse observed to date. A fine time resolution spectral analysis shows power-law decays of the peak energy from the onset of the pulse, consistent with models of internal synchrotron shock pulses. However, a strongly correlated power-law behavior is observed between the luminosity and the spectral peak energy that is inconsistent with curvature effects arising in the relativistic outflow. It is difficult for any of the existing models to account for all of the observed spectral and temporal behaviors simultaneously. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: The First Pulse of the Extremely Bright GRB 130427A: A Test Lab for Synchrotron Shocks.
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  Data: <searchLink fieldCode="AR" term="%22Preece%2C+R%2E%22">Preece, R.</searchLink><br /><searchLink fieldCode="AR" term="%22Burgess%2C+J%2E+Michael%22">Burgess, J. Michael</searchLink><br /><searchLink fieldCode="AR" term="%22von+Kienlin%2C+A%2E%22">von Kienlin, A.</searchLink><br /><searchLink fieldCode="AR" term="%22Bhat%2C+P%2E+N%2E%22">Bhat, P. N.</searchLink><br /><searchLink fieldCode="AR" term="%22Briggs%2C+M%2E+S%2E%22">Briggs, M. S.</searchLink><br /><searchLink fieldCode="AR" term="%22Byrne%2C+D%2E%22">Byrne, D.</searchLink><br /><searchLink fieldCode="AR" term="%22Chaplin%2C+V%2E%22">Chaplin, V.</searchLink><br /><searchLink fieldCode="AR" term="%22Cleveland%2C+W%2E%22">Cleveland, W.</searchLink><br /><searchLink fieldCode="AR" term="%22Collazzi%2C+A%2E+C%2E%22">Collazzi, A. C.</searchLink><br /><searchLink fieldCode="AR" term="%22Connaughton%2C+V%2E%22">Connaughton, V.</searchLink><br /><searchLink fieldCode="AR" term="%22Diekmann%2C+A%2E%22">Diekmann, A.</searchLink><br /><searchLink fieldCode="AR" term="%22Fitzpatrick%2C+G%2E%22">Fitzpatrick, G.</searchLink><br /><searchLink fieldCode="AR" term="%22Foley%2C+S%2E%22">Foley, S.</searchLink><br /><searchLink fieldCode="AR" term="%22Gibby%2C+M%2E%22">Gibby, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Giles%2C+M%2E%22">Giles, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Goldstein%2C+A%2E%22">Goldstein, A.</searchLink><br /><searchLink fieldCode="AR" term="%22Greiner%2C+J%2E%22">Greiner, J.</searchLink><br /><searchLink fieldCode="AR" term="%22Gruber%2C+D%2E%22">Gruber, D.</searchLink><br /><searchLink fieldCode="AR" term="%22Jenke%2C+P%2E%22">Jenke, P.</searchLink><br /><searchLink fieldCode="AR" term="%22Kippen%2C+R%2E+M%2E%22">Kippen, R. M.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 1/3/2014, Vol. 343 Issue 6166, p51-54. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Gamma+ray+bursts%22">Gamma ray bursts</searchLink><br /><searchLink fieldCode="DE" term="%22Supergiant+stars%22">Supergiant stars</searchLink><br /><searchLink fieldCode="DE" term="%22Synchrotron+radiation%22">Synchrotron radiation</searchLink><br /><searchLink fieldCode="DE" term="%22Stellar+luminosity+function%22">Stellar luminosity function</searchLink><br /><searchLink fieldCode="DE" term="%22Gamma+ray+astronomy%22">Gamma ray astronomy</searchLink><br /><searchLink fieldCode="DE" term="%22Stellar+spectra%22">Stellar spectra</searchLink>
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  Data: Gammaray burst (GRB) 130427A is one of the most energetic GRBs ever observed. The initial pulse up to 2.5 seconds is possibly the brightest well-isolated pulse observed to date. A fine time resolution spectral analysis shows power-law decays of the peak energy from the onset of the pulse, consistent with models of internal synchrotron shock pulses. However, a strongly correlated power-law behavior is observed between the luminosity and the spectral peak energy that is inconsistent with curvature effects arising in the relativistic outflow. It is difficult for any of the existing models to account for all of the observed spectral and temporal behaviors simultaneously. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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